Features Configuration Bits RAM map SFR map

PIC18LF27J53
CONFIG1L (address:0x01FFF8, mask:0x7F, default:0x7F)
WDTEN -- Watchdog Timer (bitmask:0x01)
WDTEN = OFF | 0x00 | Disabled - Controlled by SWDTEN bit.
WDTEN = ON | 0x01 | Enabled.
PLLDIV -- PLL Prescaler Selection (bitmask:0x0E)
PLLDIV = 12 | 0x00 | Divide by 12 (48 MHz oscillator input).
PLLDIV = 10 | 0x02 | Divide by 10 (40 MHz oscillator input).
PLLDIV = 6 | 0x04 | Divide by 6 (24 MHz oscillator input).
PLLDIV = 5 | 0x06 | Divide by 5 (20 MHz oscillator input).
PLLDIV = 4 | 0x08 | Divide by 4 (16 MHz oscillator input).
PLLDIV = 3 | 0x0A | Divide by 3 (12 MHz oscillator input).
PLLDIV = 2 | 0x0C | Divide by 2 (8 MHz oscillator input).
PLLDIV = 1 | 0x0E | No prescale (4 MHz oscillator input drives PLL directly).
CFGPLLEN -- PLL Enable Configuration Bit (bitmask:0x10)
CFGPLLEN = ON | 0x00 | PLL Enabled.
CFGPLLEN = OFF | 0x10 | PLL Disabled.
STVREN -- Stack Overflow/Underflow Reset (bitmask:0x20)
STVREN = OFF | 0x00 | Disabled.
STVREN = ON | 0x20 | Enabled.
XINST -- Extended Instruction Set (bitmask:0x40)
XINST = OFF | 0x00 | Disabled.
XINST = ON | 0x40 | Enabled.
CONFIG1H (address:0x01FFF9, mask:0x07, default:0x07)
CPUDIV -- CPU System Clock Postscaler (bitmask:0x03)
CPUDIV = OSC4_PLL6 | 0x00 | CPU system clock divide by 6.
CPUDIV = OSC3_PLL3 | 0x01 | CPU system clock divide by 3.
CPUDIV = OSC2_PLL2 | 0x02 | CPU system clock divide by 2.
CPUDIV = OSC1 | 0x03 | No CPU system clock divide.
CP0 -- Code Protect (bitmask:0x04)
CP0 = ON | 0x00 | Program memory is code-protected.
CP0 = OFF | 0x04 | Program memory is not code-protected.
CONFIG2L (address:0x01FFFA, mask:0xFF, default:0xFF)
OSC -- Oscillator (bitmask:0x07)
OSC = INTOSC | 0x00 | INTOSC.
OSC = INTOSCO | 0x01 | INTOSCO (CLKO-RA6).
OSC = INTOSCPLL | 0x02 | INTOSCPLL.
OSC = INTOSCPLLO | 0x03 | INTOSCPLLO (CLKO-RA6).
OSC = HS | 0x04 | HS, USB-HS.
OSC = HSPLL | 0x05 | HS+PLL, USB-HS+PLL.
OSC = EC | 0x06 | EC (CLKO-RA6), USB-EC.
OSC = ECPLL | 0x07 | EC+PLL (CLKO-RA6), USB-EC+PLL.
SOSCSEL -- T1OSC/SOSC Power Selection Bits (bitmask:0x18)
SOSCSEL = RESERVED | 0x00 | Reserved.
SOSCSEL = LOW | 0x08 | Low Power T1OSC/SOSC circuit selected.
SOSCSEL = DIG | 0x10 | Digital (SCLKI) mode selected.
SOSCSEL = HIGH | 0x18 | High Power T1OSC/SOSC circuit selected.
CLKOEC -- EC Clock Out Enable Bit (bitmask:0x20)
CLKOEC = OFF | 0x00 | CLKO output disabled on the RA6 pin.
CLKOEC = ON | 0x20 | CLKO output enabled on the RA6 pin.
FCMEN -- Fail-Safe Clock Monitor (bitmask:0x40)
FCMEN = OFF | 0x00 | Disabled.
FCMEN = ON | 0x40 | Enabled.
IESO -- Internal External Oscillator Switch Over Mode (bitmask:0x80)
IESO = OFF | 0x00 | Disabled.
IESO = ON | 0x80 | Enabled.
CONFIG2H (address:0x01FFFB, mask:0x0F, default:0x0F)
WDTPS -- Watchdog Postscaler (bitmask:0x0F)
WDTPS = 1 | 0x00 | 1:1.
WDTPS = 2 | 0x01 | 1:2.
WDTPS = 4 | 0x02 | 1:4.
WDTPS = 8 | 0x03 | 1:8.
WDTPS = 16 | 0x04 | 1:16.
WDTPS = 32 | 0x05 | 1:32.
WDTPS = 64 | 0x06 | 1:64.
WDTPS = 128 | 0x07 | 1:128.
WDTPS = 256 | 0x08 | 1:256.
WDTPS = 512 | 0x09 | 1:512.
WDTPS = 1024 | 0x0A | 1:1024.
WDTPS = 2048 | 0x0B | 1:2048.
WDTPS = 4096 | 0x0C | 1:4096.
WDTPS = 8192 | 0x0D | 1:8192.
WDTPS = 16384 | 0x0E | 1:16384.
WDTPS = 32768 | 0x0F | 1:32768.
CONFIG3L (address:0x01FFFC, mask:0xFF, default:0xFF)
DSWDTOSC -- DSWDT Clock Select (bitmask:0x01)
DSWDTOSC = T1OSCREF | 0x00 | DSWDT uses T1OSC/T1CKI.
DSWDTOSC = INTOSCREF | 0x01 | DSWDT uses INTRC.
RTCOSC -- RTCC Clock Select (bitmask:0x02)
RTCOSC = INTOSCREF | 0x00 | RTCC uses INTRC.
RTCOSC = T1OSCREF | 0x02 | RTCC uses T1OSC/T1CKI.
DSBOREN -- Deep Sleep BOR (bitmask:0x04)
DSBOREN = OFF | 0x00 | Disabled.
DSBOREN = ON | 0x04 | Enabled.
DSWDTEN -- Deep Sleep Watchdog Timer (bitmask:0x08)
DSWDTEN = OFF | 0x00 | Disabled.
DSWDTEN = ON | 0x08 | Enabled.
DSWDTPS -- Deep Sleep Watchdog Postscaler (bitmask:0xF0)
DSWDTPS = 2 | 0x00 | 1:2 (2.1 ms).
DSWDTPS = 8 | 0x10 | 1:8 (8.3 ms).
DSWDTPS = 32 | 0x20 | 1:32 (33 ms).
DSWDTPS = 128 | 0x30 | 1:128 (132 ms).
DSWDTPS = 512 | 0x40 | 1:512 (528 ms).
DSWDTPS = 2048 | 0x50 | 1:2,048 (2.1 seconds).
DSWDTPS = 8192 | 0x60 | 1:8,192 (8.5 seconds).
DSWDTPS = K32 | 0x70 | 1:32,768 (34 seconds).
DSWDTPS = K131 | 0x80 | 1:131,072 (135 seconds).
DSWDTPS = K524 | 0x90 | 1:524,288 (9 minutes).
DSWDTPS = M2 | 0xA0 | 1:2,097,152 (36 minutes).
DSWDTPS = M8 | 0xB0 | 1:8,388,608 (2.4 hours).
DSWDTPS = M33 | 0xC0 | 1:33,554,432 (9.6 hours).
DSWDTPS = M134 | 0xD0 | 1:134,217,728 (38.5 hours).
DSWDTPS = M536 | 0xE0 | 1:536,870,912 (6.4 days).
DSWDTPS = G2 | 0xF0 | 1:2,147,483,648 (25.7 days).
CONFIG3H (address:0x01FFFD, mask:0x0B, default:0x0B)
IOL1WAY -- IOLOCK One-Way Set Enable bit (bitmask:0x01)
IOL1WAY = OFF | 0x00 | The IOLOCK bit (PPSCON<0>) can be set and cleared as needed.
IOL1WAY = ON | 0x01 | The IOLOCK bit (PPSCON<0>) can be set once.
ADCSEL -- ADC 10 or 12 Bit Select (bitmask:0x02)
ADCSEL = BIT12 | 0x00 | 12 - Bit ADC Enabled.
ADCSEL = BIT10 | 0x02 | 10 - Bit ADC Enabled.
MSSP7B_EN -- MSSP address masking (bitmask:0x08)
MSSP7B_EN = MSK5 | 0x00 | 5 Bit address masking mode.
MSSP7B_EN = MSK7 | 0x08 | 7 Bit address masking mode.
CONFIG4L (address:0x01FFFE, mask:0xFF, default:0xFF)
WPFP -- Write/Erase Protect Page Start/End Location (bitmask:0x7F)
WPFP = PAGE_0 | 0x00 | Write Protect Program Flash Page 0.
WPFP = PAGE_1 | 0x01 | Write Protect Program Flash Page 1.
WPFP = PAGE_2 | 0x02 | Write Protect Program Flash Page 2.
WPFP = PAGE_3 | 0x03 | Write Protect Program Flash Page 3.
WPFP = PAGE_4 | 0x04 | Write Protect Program Flash Page 4.
WPFP = PAGE_5 | 0x05 | Write Protect Program Flash Page 5.
WPFP = PAGE_6 | 0x06 | Write Protect Program Flash Page 6.
WPFP = PAGE_7 | 0x07 | Write Protect Program Flash Page 7.
WPFP = PAGE_8 | 0x08 | Write Protect Program Flash Page 8.
WPFP = PAGE_9 | 0x09 | Write Protect Program Flash Page 9.
WPFP = PAGE_10 | 0x0A | Write Protect Program Flash Page 10.
WPFP = PAGE_11 | 0x0B | Write Protect Program Flash Page 11.
WPFP = PAGE_12 | 0x0C | Write Protect Program Flash Page 12.
WPFP = PAGE_13 | 0x0D | Write Protect Program Flash Page 13.
WPFP = PAGE_14 | 0x0E | Write Protect Program Flash Page 14.
WPFP = PAGE_15 | 0x0F | Write Protect Program Flash Page 15.
WPFP = PAGE_16 | 0x10 | Write Protect Program Flash Page 16.
WPFP = PAGE_17 | 0x11 | Write Protect Program Flash Page 17.
WPFP = PAGE_18 | 0x12 | Write Protect Program Flash Page 18.
WPFP = PAGE_19 | 0x13 | Write Protect Program Flash Page 19.
WPFP = PAGE_20 | 0x14 | Write Protect Program Flash Page 20.
WPFP = PAGE_21 | 0x15 | Write Protect Program Flash Page 21.
WPFP = PAGE_22 | 0x16 | Write Protect Program Flash Page 22.
WPFP = PAGE_23 | 0x17 | Write Protect Program Flash Page 23.
WPFP = PAGE_24 | 0x18 | Write Protect Program Flash Page 24.
WPFP = PAGE_25 | 0x19 | Write Protect Program Flash Page 25.
WPFP = PAGE_26 | 0x1A | Write Protect Program Flash Page 26.
WPFP = PAGE_27 | 0x1B | Write Protect Program Flash Page 27.
WPFP = PAGE_28 | 0x1C | Write Protect Program Flash Page 28.
WPFP = PAGE_29 | 0x1D | Write Protect Program Flash Page 29.
WPFP = PAGE_30 | 0x1E | Write Protect Program Flash Page 30.
WPFP = PAGE_31 | 0x1F | Write Protect Program Flash Page 31.
WPFP = PAGE_32 | 0x20 | Write Protect Program Flash Page 32.
WPFP = PAGE_33 | 0x21 | Write Protect Program Flash Page 33.
WPFP = PAGE_34 | 0x22 | Write Protect Program Flash Page 34.
WPFP = PAGE_35 | 0x23 | Write Protect Program Flash Page 35.
WPFP = PAGE_36 | 0x24 | Write Protect Program Flash Page 36.
WPFP = PAGE_37 | 0x25 | Write Protect Program Flash Page 37.
WPFP = PAGE_38 | 0x26 | Write Protect Program Flash Page 38.
WPFP = PAGE_39 | 0x27 | Write Protect Program Flash Page 39.
WPFP = PAGE_40 | 0x28 | Write Protect Program Flash Page 40.
WPFP = PAGE_41 | 0x29 | Write Protect Program Flash Page 41.
WPFP = PAGE_42 | 0x2A | Write Protect Program Flash Page 42.
WPFP = PAGE_43 | 0x2B | Write Protect Program Flash Page 43.
WPFP = PAGE_44 | 0x2C | Write Protect Program Flash Page 44.
WPFP = PAGE_45 | 0x2D | Write Protect Program Flash Page 45.
WPFP = PAGE_46 | 0x2E | Write Protect Program Flash Page 46.
WPFP = PAGE_47 | 0x2F | Write Protect Program Flash Page 47.
WPFP = PAGE_48 | 0x30 | Write Protect Program Flash Page 48.
WPFP = PAGE_49 | 0x31 | Write Protect Program Flash Page 49.
WPFP = PAGE_50 | 0x32 | Write Protect Program Flash Page 50.
WPFP = PAGE_51 | 0x33 | Write Protect Program Flash Page 51.
WPFP = PAGE_52 | 0x34 | Write Protect Program Flash Page 52.
WPFP = PAGE_53 | 0x35 | Write Protect Program Flash Page 53.
WPFP = PAGE_54 | 0x36 | Write Protect Program Flash Page 54.
WPFP = PAGE_55 | 0x37 | Write Protect Program Flash Page 55.
WPFP = PAGE_56 | 0x38 | Write Protect Program Flash Page 56.
WPFP = PAGE_57 | 0x39 | Write Protect Program Flash Page 57.
WPFP = PAGE_58 | 0x3A | Write Protect Program Flash Page 58.
WPFP = PAGE_59 | 0x3B | Write Protect Program Flash Page 59.
WPFP = PAGE_60 | 0x3C | Write Protect Program Flash Page 60.
WPFP = PAGE_61 | 0x3D | Write Protect Program Flash Page 61.
WPFP = PAGE_62 | 0x3E | Write Protect Program Flash Page 62.
WPFP = PAGE_63 | 0x3F | Write Protect Program Flash Page 63.
WPFP = PAGE_64 | 0x40 | Write Protect Program Flash Page 64.
WPFP = PAGE_65 | 0x41 | Write Protect Program Flash Page 65.
WPFP = PAGE_66 | 0x42 | Write Protect Program Flash Page 66.
WPFP = PAGE_67 | 0x43 | Write Protect Program Flash Page 67.
WPFP = PAGE_68 | 0x44 | Write Protect Program Flash Page 68.
WPFP = PAGE_69 | 0x45 | Write Protect Program Flash Page 69.
WPFP = PAGE_70 | 0x46 | Write Protect Program Flash Page 70.
WPFP = PAGE_71 | 0x47 | Write Protect Program Flash Page 71.
WPFP = PAGE_72 | 0x48 | Write Protect Program Flash Page 72.
WPFP = PAGE_73 | 0x49 | Write Protect Program Flash Page 73.
WPFP = PAGE_74 | 0x4A | Write Protect Program Flash Page 74.
WPFP = PAGE_75 | 0x4B | Write Protect Program Flash Page 75.
WPFP = PAGE_76 | 0x4C | Write Protect Program Flash Page 76.
WPFP = PAGE_77 | 0x4D | Write Protect Program Flash Page 77.
WPFP = PAGE_78 | 0x4E | Write Protect Program Flash Page 78.
WPFP = PAGE_79 | 0x4F | Write Protect Program Flash Page 79.
WPFP = PAGE_80 | 0x50 | Write Protect Program Flash Page 80.
WPFP = PAGE_81 | 0x51 | Write Protect Program Flash Page 81.
WPFP = PAGE_82 | 0x52 | Write Protect Program Flash Page 82.
WPFP = PAGE_83 | 0x53 | Write Protect Program Flash Page 83.
WPFP = PAGE_84 | 0x54 | Write Protect Program Flash Page 84.
WPFP = PAGE_85 | 0x55 | Write Protect Program Flash Page 85.
WPFP = PAGE_86 | 0x56 | Write Protect Program Flash Page 86.
WPFP = PAGE_87 | 0x57 | Write Protect Program Flash Page 87.
WPFP = PAGE_88 | 0x58 | Write Protect Program Flash Page 88.
WPFP = PAGE_89 | 0x59 | Write Protect Program Flash Page 89.
WPFP = PAGE_90 | 0x5A | Write Protect Program Flash Page 90.
WPFP = PAGE_91 | 0x5B | Write Protect Program Flash Page 91.
WPFP = PAGE_92 | 0x5C | Write Protect Program Flash Page 92.
WPFP = PAGE_93 | 0x5D | Write Protect Program Flash Page 93.
WPFP = PAGE_94 | 0x5E | Write Protect Program Flash Page 94.
WPFP = PAGE_95 | 0x5F | Write Protect Program Flash Page 95.
WPFP = PAGE_96 | 0x60 | Write Protect Program Flash Page 96.
WPFP = PAGE_97 | 0x61 | Write Protect Program Flash Page 97.
WPFP = PAGE_98 | 0x62 | Write Protect Program Flash Page 98.
WPFP = PAGE_99 | 0x63 | Write Protect Program Flash Page 99.
WPFP = PAGE_100 | 0x64 | Write Protect Program Flash Page 100.
WPFP = PAGE_101 | 0x65 | Write Protect Program Flash Page 101.
WPFP = PAGE_102 | 0x66 | Write Protect Program Flash Page 102.
WPFP = PAGE_103 | 0x67 | Write Protect Program Flash Page 103.
WPFP = PAGE_104 | 0x68 | Write Protect Program Flash Page 104.
WPFP = PAGE_105 | 0x69 | Write Protect Program Flash Page 105.
WPFP = PAGE_106 | 0x6A | Write Protect Program Flash Page 106.
WPFP = PAGE_107 | 0x6B | Write Protect Program Flash Page 107.
WPFP = PAGE_108 | 0x6C | Write Protect Program Flash Page 108.
WPFP = PAGE_109 | 0x6D | Write Protect Program Flash Page 109.
WPFP = PAGE_110 | 0x6E | Write Protect Program Flash Page 110.
WPFP = PAGE_111 | 0x6F | Write Protect Program Flash Page 111.
WPFP = PAGE_112 | 0x70 | Write Protect Program Flash Page 112.
WPFP = PAGE_113 | 0x71 | Write Protect Program Flash Page 113.
WPFP = PAGE_114 | 0x72 | Write Protect Program Flash Page 114.
WPFP = PAGE_115 | 0x73 | Write Protect Program Flash Page 115.
WPFP = PAGE_116 | 0x74 | Write Protect Program Flash Page 116.
WPFP = PAGE_117 | 0x75 | Write Protect Program Flash Page 117.
WPFP = PAGE_118 | 0x76 | Write Protect Program Flash Page 118.
WPFP = PAGE_119 | 0x77 | Write Protect Program Flash Page 119.
WPFP = PAGE_120 | 0x78 | Write Protect Program Flash Page 120.
WPFP = PAGE_121 | 0x79 | Write Protect Program Flash Page 121.
WPFP = PAGE_122 | 0x7A | Write Protect Program Flash Page 122.
WPFP = PAGE_123 | 0x7B | Write Protect Program Flash Page 123.
WPFP = PAGE_124 | 0x7C | Write Protect Program Flash Page 124.
WPFP = PAGE_125 | 0x7D | Write Protect Program Flash Page 125.
WPFP = PAGE_126 | 0x7E | Write Protect Program Flash Page 126.
WPFP = PAGE_127 | 0x7F | Write Protect Program Flash Page 127.
WPCFG -- Write/Erase Protect Configuration Region (bitmask:0x80)
WPCFG = ON | 0x00 | Configuration Words page erase/write-protected.
WPCFG = OFF | 0x80 | Configuration Words page not erase/write-protected.
CONFIG4H (address:0x01FFFF, mask:0x0B, default:0x0B)
WPDIS -- Write Protect Disable bit (bitmask:0x01)
WPDIS = ON | 0x00 | WPFP<6:0>/WPEND region erase/write protected.
WPDIS = OFF | 0x01 | WPFP<6:0>/WPEND region ignored.
WPEND -- Write/Erase Protect Region Select bit (valid when WPDIS = 0) (bitmask:0x02)
WPEND = PAGE_0 | 0x00 | Pages 0 through WPFP<6:0> erase/write protected.
WPEND = PAGE_WPFP | 0x02 | Pages WPFP<6:0> through Configuration Words erase/write protected.
LS48MHZ -- Low Speed USB mode with 48 MHz system clock bit (bitmask:0x08)
LS48MHZ = SYS24X4 | 0x00 | System clock at 24 MHz USB CLKEN divide-by is set to 4.
LS48MHZ = SYS48X8 | 0x08 | System clock at 48 MHz USB CLKEN divide-by is set to 8.

This page generated automatically by the device-help.pl program (2022-01-30 15:56:10 UTC) from the 8bit_device.info file (rev: 1.44) of mpasmx and from the gputils source package (rev: svn Unversioned directory). The mpasmx is included in the MPLAB X.